Author Topic: Magnepan 1.7 dspNexus 2x8 DSP Crossover project  (Read 8638 times)

Offline HAL

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Re: Magnepan 1.7 dspNexus 2x8 DSP Crossover project
« Reply #15 on: August 16, 2024, 06:26:53 PM »
Made a trip to NC to pickup a second pair of Magnepan 1.7's.  Crazy enough this one has the opposite speaker to mine needing repair, so I can make one mirror image pair of the two with all the driver foils working. 

I already have the DSP crossover design for a fully working pair from the one good one I had, so can finally hear the fully working speakers.  :)

Doing it this way, it costs less that just the two way shipping of a pair for rebuild.  :o

Offline HAL

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Re: Magnepan 1.7 dspNexus 2x8 DSP Crossover project
« Reply #16 on: August 18, 2024, 02:14:54 PM »
Magnepan 1.7 pair #2 have the silver side stiles as compared to pair #1 with the black side stiles.

Now to remove the sock and passive crossover and install the replacement wiring and connector plate.

Offline HAL

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Re: Magnepan 1.7 dspNexus 2x8 DSP Crossover project
« Reply #17 on: August 20, 2024, 06:11:40 AM »
The side stiles were removed and sock on the intermittent 1.7 speaker and had the staples pulled, so easy to pull up the sock.

This one has a break in the woofer foil that had a repair that is not holding. The bigger problem is the woofer foil is delaminating in areas and the mylar is wrinkled. This would need a complete rebuild, so putting it aside.

I looked through the sock with a light on the working speaker and see a bit of the same foil delamination problem, but no wrinkles in the mylar. Once I remove the side stiles and staples, will be time to see if some glue cleaning and reapplication will fix the areas of problems.